Browse Prior Art Database

Speedfeed - High Speed Paper Advance in a POS Printer

IP.com Disclosure Number: IPCOM000103169D
Original Publication Date: 1990-Jul-01
Included in the Prior Art Database: 2005-Mar-17
Document File: 1 page(s) / 47K

Publishing Venue

IBM

Related People

Barker, RB: AUTHOR [+2]

Abstract

It is difficult to see the last printed line in most printers because of the machine configuration. In a Point of Sale, POS, printer, the operator needs to see the last printed line if the customer has a question about an item that was purchased. Keypads are often used to advance the paper line by line, but this mode of operation is slow and can be prone to errors. This is especially true in the journal station where an operator must advance the paper precisely to a write-in window when a security cover is used. Adding typamatic functions to the keypad has the same possibility of error even though the operation is faster.

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This is the abbreviated version, containing approximately 79% of the total text.

Speedfeed - High Speed Paper Advance in a POS Printer

      It is difficult to see the last printed line in most printers
because of the machine configuration.  In a Point of Sale, POS,
printer, the operator needs to see the last printed line if the
customer has a question about an item that was purchased.  Keypads
are often used to advance the paper line by line, but this mode of
operation is slow and can be prone to errors.  This is especially
true in the journal station where an operator must advance the paper
precisely to a write-in window when a security cover is used.  Adding
typamatic functions to the keypad has the same possibility of error
even though the operation is faster.

      By checking the status of a cover sensor (required for security
reasons), the printer microcode can change the operating mode of the
keypad to either a SpeedFeed mode (for fast paper advances) or a line
by line mode (for paper loading).

      SpeedFeed is available whenever the access cover is closed as
the printer microcode assumes the operator wishes to advance the
paper quickly.  The last printed line is rapidly and accurately
advanced to a readable position with a single depression of the
keypad button.  While it is possible for the button to be programmed
in a typamatic mode, the typamatic functions (or additional button
activations) would be ignored until the initial SpeedFeed paper
advancement was completed.

      When the access cover is opened, the print...